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Edition 3.1 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-56: Particular requirements for projectors and similar appliances
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-56: Règles particulières pour les projecteurs d'images et appareils
analogues
IEC 60335-2-56:2002+A1:2008
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IEC 60335-2-56
Edition 3.1 2008-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Household and similar electrical appliances – Safety –
Part 2-56: Particular requirements for projectors and similar appliances
Appareils électrodomestiques et analogues – Sécurité –
Partie 2-56: Règles particulières pour les projecteurs d'images et appareils
analogues
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CE
CODE PRIX
ICS 13.120; 37.060.10; 97.180 ISBN 2-8318-9759-9
Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
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– 2 – 60335-2-56 © IEC:2002+A1:2008
CONTENTS
FOREWORD.3
INTRODUCTION.5
1 Scope.6
2 Normative references.7
3 Definitions.7
4 General requirement.9
5 General conditions for the tests .9
6 Classification.9
7 Marking and instructions.9
8 Protection against access to live parts.10
9 Starting of motor-operated appliances .10
10 Power input and current .10
11 Heating.10
12 Void .11
13 Leakage current and electric strength at operating temperature.11
14 Transient overvoltages .11
15 Moisture resistance.11
16 Leakage current and electric strength.11
17 Overload protection of transformers and associated circuits .11
18 Endurance.11
19 Abnormal operation.12
20 Stability and mechanical hazards .12
21 Mechanical strength.13
22 Construction.13
23 Internal wiring.13
24 Components.13
25 Supply connection and external flexible cords .13
26 Terminals for external conductors.14
27 Provision for earthing .14
28 Screws and connections .14
29 Clearances, creepage distances and solid insulation .14
30 Resistance to heat and fire.14
31 Resistance to rusting.14
32 Radiation, toxicity and similar hazards.14
Annexes .15
Bibliography.15
11
Table 101 – Temperature rise limits .
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60335-2-56 © IEC:2002+A1:2008 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-56: Particular requirements for projectors
and similar appliances
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This part of International Standard IEC 60335 has been prepared by IEC technical committee 61:
Safety of household and similar electrical appliances.
This consolidated version of IEC 60335-2-56 consists of the third edition (2002) [documents
61/2171/FDIS and 61/2252/RVD] and its amendment 1 (2008) [documents 61/3557/FDIS and
61/3603/RVD].
The technical content is therefore identical to the base edition and its amendment and has
been prepared for user convenience.
It bears the edition number 3.1.
A vertical line in the margin shows where the base publication has been modified by
amendment 1.
The French version of this standard has not been voted upon.
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– 4 – 60335-2-56 © IEC:2002+A1:2008
This part 2 is to be used in conjunction with the latest edition of IEC 60335-1 and its
amendments. It was established on the basis of the fourth edition (2001) of that standard.
NOTE 1 When “Part 1” is mentioned in this standard, it refers to IEC 60335-1.
This part 2 supplements or modifies the corresponding clauses in IEC 60335-1, so as to
convert that publication into the IEC standard: Safety requirements for electric projectors and
similar appliances.
When a particular subclause of Part 1 is not mentioned in this part 2, that subclause applies
as far as is reasonable. When this standard states "addition", "modification", or "replacement",
the relevant text in Part 1 is to be adapted accordingly.
NOTE 2 The following numbering system is used:
– subclauses, tables and figures that are numbered starting from 101 are additional to those in Part 1;
– unless notes are in a new subclause or involve notes in Part 1, they are numbered starting from 101, including
those in a replaced clause or subclause;
– additional annexes are lettered AA, BB, etc.
NOTE 3 The following print types are used:
– requirements: in roman type;
– test specifications: in italic type;
– notes: in small roman type.
Words in bold in the text are defined in Clause 3. When a definition concerns an adjective, the adjective and the
associated noun are also in bold.
The following differences exist in the countries indicated below.
– 3.1.9: The operating times are different (USA).
– 11.8: The addition is not applicable (USA).
– 19.1: The test of 19.9 is carried out (USA).
– 19.7: The test is different (USA).
– 21.101: The test is different (USA).
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the maintenance result date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date,
the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
NOTE 4 The attention of National Committees is drawn to the fact that equipment manufacturers and testing
organizations may need a transitional period following publication of a new, amended or revised IEC publication in
which to make products in accordance with the new requirements and to equip themselves for conducting new or
revised tests.
It is the recommendation of the committee that the content of the amendment 1 be adopted for implementation
nationally not earlier than 12 months or later than 36 months from the date of publication.
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60335-2-56 © IEC:2002+A1:2008 – 5 –
INTRODUCTION
It has been assumed in the drafting of this International Standard that the execution of its
provisions is entrusted to appropriately qualified and experienced persons.
This standard recognizes the internationally accepted level of protection against hazards such
as electrical, mechanical, thermal, fire and radiation of appliances when operated as in
normal use taking into account the manufacturer's instructions. It also covers abnormal
situations that can be expected in practice and takes into account the way in which
electromagnetic phenomena can affect the safe operation of appliances.
This standard takes into account the requirements of IEC 60364 as far as possible so that
there is compatibility with the wiring rules when the appliance is connected to the supply
mains. However, national wiring rules may differ.
If an appliance within the scope of this standard also incorporates functions that are covered
by another part 2 of IEC 60335, the relevant part 2 is applied to each function separately, as
far as is reasonable. If applicable, the influence of one function on the other is taken into
account.
When a part 2 standard does not include additional requirements to cover hazards dealt with
in Part 1, Part 1 applies.
NOTE 1 This means that the technical committees responsible for the part 2 standards have determined that it is
not necessary to specify particular requirements for the appliance in question over and above the general
requirements.
This standard is a product family standard dealing with the safety of appliances and takes
precedence over horizontal and generic standards covering the same subject.
NOTE 2 Horizontal and generic standards covering a hazard are not applicable since they have been taken into
consideration when developing the general and particular requirements for the IEC 60335 series of standards. For
example, in the case of temperature requirements for surfaces on many appliances, generic standards, such as
ISO 13732-1 for hot surfaces, are not applicable in addition to Part 1 or part 2 standards.
An appliance that complies with the text of this standard will not necessarily be considered to
comply with the safety principles of the standard if, when examined and tested, it is found to
have other features that impair the level of safety covered by these requirements.
An appliance employing materials or having forms of construction differing from those detailed
in the requirements of this standard may be examined and tested according to the intent of
the requirements and, if found to be substantially equivalent, may be considered to comply
with the standard.
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HOUSEHOLD AND SIMILAR ELECTRICAL APPLIANCES –
SAFETY –
Part 2-56: Particular requirements for projectors
and similar appliances
1 Scope
This clause of Part 1 is replaced by the following.
This International Standard deals with the safety of electric projectors and similar appliances
for household and similar purposes, their rated voltage being not more than 250 V.
NOTE 101 Examples of appliances that are within the scope of this standard are
– effects projectors;
– film-strip projectors;
– film viewers;
– microscope projectors;
– motion-picture projectors;
– opaque projectors (episcopes);
– opaque-transparency projectors (epidiascopes);
– overhead projectors;
– photographic enlargers;
– photo-reproduction appliances;
– slide projectors (diascopes);
– slide-sorting appliances.
– still viewers.
Appliances may incorporate sound amplifiers.
Appliances not intended for normal household use, but which nevertheless may be a source
of danger to the public, such as appliances intended for use by laymen in schools, offices,
shops and similar locations are within the scope of this standard.
As far as practicable, this standard deals with the common hazards presented by appliances
which are encountered by all persons in and around the home. However, in general, it does
not take into account
– persons (including children) whose
• physical, sensory or mental capabilities; or
• lack of experience and knowledge
prevents them from using the appliance safely without supervision or instruction;
– children playing with the appliance.
NOTES 102 Attention is drawn to the fact that
– for appliances intended to be used in vehicles or on board ships or aircraft, additional requirements may be
necessary;
– in many countries additional requirements are specified by the national health authorities, the national
authorities responsible for the protection of labour, and similar authorities.
– IEC 60598-1 is applicable as far as is reasonable.
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60335-2-56 © IEC:2002+A1:2008 – 7 –
NOTE 103 This standard does not apply to:
– LCD and video projectors (IEC 60065);
– micrographic office equipment (IEC 60950);
– motion picture projectors for films having a width exceeding 16 mm;
– appliances intended to be used in locations where special conditions prevail, such as the presence of a
corrosive or explosive atmosphere (dust, vapour or gas);
– appliances for medical purposes (IEC 60601).
2 Normative references
This clause of Part 1 is applicable.
3 Definitions
This clause of Part 1 is applicable except as follows.
3.1.9 Replacement:
normal operation
operation of the appliance as in normal use under the following conditions
Semi-automatic slide projectors are operated with the slide carrier filled and with the slide
changing mechanism operated every 10 s.
Fully-automatic slide projectors are operated with the slide carrier filled and with the
control for the slide changing mechanism adjusted for the most unfavourable speed. If
necessary, the projector is reloaded with slides as quickly as possible.
Semi-automatic film-strip projectors are operated with the longest film that can be
accommodated and with the frame changing mechanism operated every 10 s.
Fully-automatic film-strip projectors are operated with the longest film that can be
accommodated and with the control adjusted to give the most unfavourable period for viewing
the frames. If necessary, the projector is reloaded with film strips as quickly as possible.
Motion-picture projectors and film viewers are operated in cycles using the longest film
that can be accommodated. Each cycle consists of a period during which the film is projected,
followed by a period during which the film is fully rewound. Fans are not manually switched
off.
Photographic enlargers, with a film strip in position, and photo-reproduction appliances
are operated in cycles. Each cycle consists of a period of operation of 1 min followed by a
rest period of 1 min.
Opaque projectors are operated with a neutral grey card of a sufficient size to completely
cover the object field.
NOTE 101 The neutral grey card is made of 2 mm thick cardboard having a grey side with 18 % reflectance and a
white side with 90 % reflectance.
Other appliances are operated with the appropriate visual media in position.
Audio amplifiers are operated in accordance with the conditions of normal operation specified
in subclause 4.2.6 of IEC 60065.
Manually-switched motors for adjusting the lens are operated for the time necessary to move
the lens from one extreme position to the other. This operation is carried out once every 4 min
for manually-operated projectors and after each 18 frames have been projected for other
projectors.
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– 8 – 60335-2-56 © IEC:2002+A1:2008
3.101
slide projector
appliance for the still projection of slides
3.102
manually-operated slide projector
slide projector in which the slides are changed by hand
3.103
semi-automatic slide projector
slide projector in which the slides are changed automatically, each operation being initiated
manually
3.104
fully-automatic slide projector
slide projector in which the slides are changed automatically, each operation being initiated
by a timer, tape recorder or other automatic means
3.105
overhead projector
appliance with a large object field intended for the still projection of positive transparencies
3.106
opaque projector
appliance for the still projection of non-transparent positives
3.107
opaque-transparency projector
combination of a slide projector and an opaque projector
3.108
microscope projector
appliance that projects microscope slides
3.109
effects projector
appliance for generating optical effects
NOTE Optical effects may be produced by projecting film loops, rotating disks or other means.
3.110
still viewer
appliance for directly viewing an image from a slide or film strip
3.111
film viewer
appliance for viewing motion picture film on an integral screen
3.112
motion-picture projector
appliance for the diascopic projection of motion picture film
3.113
photo-reproduction appliance
appliance for photographing drawings, transparencies, printed matter and other objects
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60335-2-56 © IEC:2002+A1:2008 – 9 –
3.114
photographic enlarger
appliance for producing enlarged photographic prints
3.115
film-strip projector
appliance for the sequential or random projection of individual frames in a film strip or loop
3.116
manually-operated film-strip projector
film-strip projector in which the individual frames are selected by manual action
3.117
semi-automatic film-strip projector
film-strip projector in which individual frames are selected automatically, each operation
being initiated manually
3.118
fully-automatic film-strip projector
film-strip projector in which individual frames are selected automatically, each operation
being initiated by a timer, tape recorder or other automatic means
3.119
slide-sorting appliance
appliance for manual selection of transparencies that are illuminated from the rear by artificial
light
4 General requirement
This clause of Part 1 is applicable.
5 General conditions for the tests
This clause of Part 1 is applicable except as follows.
5.6 Addition:
Lamp intensities are adjusted to the highest setting.
5.101 Appliances are tested as motor-operated appliances.
6 Classification
This clause of Part 1 is applicable.
7 Marking and instructions
This clause of Part 1 is applicable except as follows.
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– 10 – 60335-2-56 © IEC:2002+A1:2008
7.1 Addition:
Appliances shall be marked on or near the lampholder with the power input of replaceable
projection lamps as follows:
lamp . . . W
The word “lamp” may be replaced by symbol IEC 60417-5012 (2002-10).
The rated voltage of the lamp shall also be marked.
7.12 Addition:
The instructions shall state that ventilation openings are not to be obstructed during operation
of the appliance.
The instructions shall state the rated voltage, rated power input and model or type
reference of replaceable lamps. They shall include the substance of the following:
– disconnect from the supply before changing the lamp;
– allow the appliance to cool before touching the lamp or parts of the optical system.
7.15 Addition:
The marking related to replaceable projection lamps shall be visible during replacement of the
lamp.
8 Protection against access to live parts
This clause of Part 1 is applicable.
9 Starting of motor-operated appliances
This clause of Part 1 is not applicable.
10 Power input and current
This clause of Part 1 is applicable.
11 Heating
This clause of Part 1 is applicable except as follows.
11.7 Replacement:
Appliances are operated until steady conditions are established.
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60335-2-56 © IEC:2002+A1:2008 – 11 –
11.8 Addition:
Temperatures rises shall not exceed the values shown in Table 101.
Table 101 – Temperature rise limits
Part Temperature rise
K
Accessible ventilation grilles
– of metal 80
– other material 100
a
Neutral grey card 150
b
Accessible lens of overhead projectors 120
a
The temperature rise is measured on the white side of the card,
the grey side facing the lamp.
b
The temperature rise shall not exceed 100 K when the lamp has
been switched off for 3 min.
12 Void
13 Leakage current and electric strength at operating temperature
This clause of Part 1 is applicable.
14 Transient overvoltages
This clause of Part 1 is applicable.
15 Moisture resistance
This clause of Part 1 is applicable.
16 Leakage current and electric strength
...